[unix-history] / usr / src / sys / netccitt / pk.h

/*
 * Copyright (c) University of British Columbia, 1984
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Laboratory for Computation Vision and the Computer Science Department
 * of the University of British Columbia.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)pk.h	7.2 (Berkeley) %G%
 */

/*
 *
 *  X.25 Packet Level Definitions:
 *
 */

/* Packet type identifier field defintions. */

#define X25_CALL                         11
#define X25_CALL_ACCEPTED                15   
#define X25_CLEAR                        19
#define X25_CLEAR_CONFIRM                23  
#define X25_DATA                          0   
#define X25_INTERRUPT                    35   
#define X25_INTERRUPT_CONFIRM            39   

#define X25_RR                            1   
#define X25_RNR                           5   
#define X25_RESET                        27 
#define X25_RESET_CONFIRM                31   

#define X25_RESTART                     251     
#define X25_RESTART_CONFIRM		255 

/* Restart cause field definitions. */

#define X25_RESTART_LOCAL_PROCEDURE_ERROR 1
#define X25_RESTART_NETWORK_CONGESTION	  3
#define X25_RESTART_NETWORK_OPERATIONAL	  7

/* Miscellaneous definitions. */

#define DATA_PACKET_DESIGNATOR		0x01
#define RR_OR_RNR_PACKET_DESIGNATOR	0x02
#define RR_PACKET_DESIGNATOR		0x04

#define DEFAULT_WINDOW_SIZE		2
#define MODULUS				8

#define ADDRLN				1
#define MAXADDRLN			15
#define FACILITIESLN			1
#define MAXFACILITIESLN			10
#define MAXUSERDATA			16
#define MAXCALLINFOLN			1+15+1+10+16

#define PACKET_OK			0
#define IGNORE_PACKET			1
#define ERROR_PACKET			2

typedef char    bool;
#define FALSE	0
#define TRUE	1

/*
 *  X.25 Packet format definitions
 *  This will eventually have to be rewritten without reference
 *  to bit fields, to be ansi C compliant and allignment safe.
 */

#if BYTE_ORDER == BIG_ENDIAN
#define ORDER2(a, b) a , b
#define ORDER3(a, b, c) a , b , c
#define ORDER4(a, b, c, d) a , b , c , d
#endif

#if BYTE_ORDER == LITTLE_ENDIAN
#define ORDER2(a, b) b , a
#define ORDER3(a, b, c) c , b , a
#define ORDER4(a, b, c, d) d , c , b , a
#endif

typedef u_char octet;

struct x25_calladdr {
	octet ORDER2(called_addrlen:4, calling_addrlen:4);
	octet address_field[MAXADDRLN];
}

struct x25_packet {
	octet ORDER3(lc_group_number:4, fmt_identifier:3, q_bit:1);
	octet logical_channel_number;
	octet packet_type;
	octet packet_data;
};

struct data_packet {
	octet ORDER4(z:1, ps:3, m_bit:1, pr:3);
};

#define FACILITIES_REVERSE_CHARGE	0x1
#define FACILITIES_THROUGHPUT		0x2
#define FACILITIES_PACKETSIZE		0x42
#define FACILITIES_WINDOWSIZE		0x43

#define PKHEADERLN	3


#define PR(xp)		(((struct data_packet *)&xp -> packet_type)->pr)
#define PS(xp)		(((struct data_packet *)&xp -> packet_type)->ps)
#define MBIT(xp)	(((struct data_packet *)&xp -> packet_type)->m_bit)

struct x25_packet *pk_template ();

/* Define X.25 packet level states. */

/* Call setup and clearing substates.  */

#define LISTEN           0
#define READY            1
#define RECEIVED_CALL    2
#define SENT_CALL        3
#define DATA_TRANSFER    4
#define RECEIVED_CLEAR   5
#define SENT_CLEAR       6

/* DTE states. */

#define DTE_WAITING		7
#define DTE_RECEIVED_RESTART	8
#define DTE_SENT_RESTART	9
#define DTE_READY		0

#define MAXSTATES		10

/*
 *  The following definitions are used in a switch statement after
 *  determining the packet type.  These values are returned by the
 *  pk_decode procedure. 
 */

#define CALL             0 * MAXSTATES
#define CALL_ACCEPTED    1 * MAXSTATES
#define CLEAR            2 * MAXSTATES
#define CLEAR_CONF       3 * MAXSTATES
#define DATA             4 * MAXSTATES
#define INTERRUPT        5 * MAXSTATES
#define INTERRUPT_CONF   6 * MAXSTATES
#define RR               7 * MAXSTATES
#define RNR              8 * MAXSTATES
#define RESET            9 * MAXSTATES
#define RESET_CONF      10 * MAXSTATES
#define RESTART         11 * MAXSTATES
#define RESTART_CONF    12 * MAXSTATES
#define INVALID_PACKET  13 * MAXSTATES
#define DELETE_PACKET	INVALID_PACKET
Commit	Line	Data
658d6a25 KS	1	/*
	2	* Copyright (c) University of British Columbia, 1984
	3	* Copyright (c) 1990 The Regents of the University of California.
	4	* All rights reserved.
	5	*
	6	* This code is derived from software contributed to Berkeley by
	7	* the Laboratory for Computation Vision and the Computer Science Department
	8	* of the University of British Columbia.
	9	*
	10	* %sccs.include.redist.c%
	11	*
	12	* @(#)pk.h 7.2 (Berkeley) %G%
	13	*/
5b7aaaef KS	14
	15	/*
	16	*
	17	* X.25 Packet Level Definitions:
	18	*
	19	*/
	20
	21	/* Packet type identifier field defintions. */
	22
	23	#define X25_CALL 11
	24	#define X25_CALL_ACCEPTED 15
	25	#define X25_CLEAR 19
	26	#define X25_CLEAR_CONFIRM 23
	27	#define X25_DATA 0
	28	#define X25_INTERRUPT 35
	29	#define X25_INTERRUPT_CONFIRM 39
	30
	31	#define X25_RR 1
	32	#define X25_RNR 5
	33	#define X25_RESET 27
	34	#define X25_RESET_CONFIRM 31
	35
	36	#define X25_RESTART 251
	37	#define X25_RESTART_CONFIRM 255
	38
	39	/* Restart cause field definitions. */
	40
	41	#define X25_RESTART_LOCAL_PROCEDURE_ERROR 1
	42	#define X25_RESTART_NETWORK_CONGESTION 3
	43	#define X25_RESTART_NETWORK_OPERATIONAL 7
	44
	45	/* Miscellaneous definitions. */
	46
	47	#define DATA_PACKET_DESIGNATOR 0x01
	48	#define RR_OR_RNR_PACKET_DESIGNATOR 0x02
	49	#define RR_PACKET_DESIGNATOR 0x04
	50
	51	#define DEFAULT_WINDOW_SIZE 2
	52	#define MODULUS 8
	53
	54	#define ADDRLN 1
	55	#define MAXADDRLN 15
	56	#define FACILITIESLN 1
	57	#define MAXFACILITIESLN 10
	58	#define MAXUSERDATA 16
	59	#define MAXCALLINFOLN 1+15+1+10+16
	60
	61	#define PACKET_OK 0
	62	#define IGNORE_PACKET 1
	63	#define ERROR_PACKET 2
	64
	65	typedef char bool;
	66	#define FALSE 0
	67	#define TRUE 1
	68
	69	/*
	70	* X.25 Packet format definitions
658d6a25 KS	71	* This will eventually have to be rewritten without reference
658d6a25 KS	72	* to bit fields, to be ansi C compliant and allignment safe.
5b7aaaef KS	73	*/
5b7aaaef KS	74
658d6a25 KS	75	#if BYTE_ORDER == BIG_ENDIAN
	76	#define ORDER2(a, b) a , b
	77	#define ORDER3(a, b, c) a , b , c
	78	#define ORDER4(a, b, c, d) a , b , c , d
	79	#endif
5b7aaaef	80
658d6a25 KS	81	#if BYTE_ORDER == LITTLE_ENDIAN
	82	#define ORDER2(a, b) b , a
	83	#define ORDER3(a, b, c) c , b , a
	84	#define ORDER4(a, b, c, d) d , c , b , a
5b7aaaef	85	#endif
5b7aaaef	86
658d6a25	87	typedef u_char octet;
5b7aaaef	88
658d6a25 KS	89	struct x25_calladdr {
	90	octet ORDER2(called_addrlen:4, calling_addrlen:4);
	91	octet address_field[MAXADDRLN];
	92	}
5b7aaaef KS	93
5b7aaaef KS	94	struct x25_packet {
658d6a25	95	octet ORDER3(lc_group_number:4, fmt_identifier:3, q_bit:1);
5b7aaaef KS	96	octet logical_channel_number;
	97	octet packet_type;
	98	octet packet_data;
	99	};
	100
	101	struct data_packet {
658d6a25	102	octet ORDER4(z:1, ps:3, m_bit:1, pr:3);
5b7aaaef KS	103	};
5b7aaaef KS	104
658d6a25 KS	105	#define FACILITIES_REVERSE_CHARGE 0x1
	106	#define FACILITIES_THROUGHPUT 0x2
	107	#define FACILITIES_PACKETSIZE 0x42
	108	#define FACILITIES_WINDOWSIZE 0x43
	109
	110	#define PKHEADERLN 3
	111
	112
5b7aaaef KS	113	#define PR(xp) (((struct data_packet *)&xp -> packet_type)->pr)
	114	#define PS(xp) (((struct data_packet *)&xp -> packet_type)->ps)
	115	#define MBIT(xp) (((struct data_packet *)&xp -> packet_type)->m_bit)
	116
	117	struct x25_packet *pk_template ();
	118
	119	/* Define X.25 packet level states. */
	120
	121	/* Call setup and clearing substates. */
	122
	123	#define LISTEN 0
	124	#define READY 1
	125	#define RECEIVED_CALL 2
	126	#define SENT_CALL 3
	127	#define DATA_TRANSFER 4
	128	#define RECEIVED_CLEAR 5
	129	#define SENT_CLEAR 6
	130
	131	/* DTE states. */
	132
	133	#define DTE_WAITING 7
	134	#define DTE_RECEIVED_RESTART 8
	135	#define DTE_SENT_RESTART 9
	136	#define DTE_READY 0
	137
	138	#define MAXSTATES 10
	139
	140	/*
	141	* The following definitions are used in a switch statement after
	142	* determining the packet type. These values are returned by the
	143	* pk_decode procedure.
	144	*/
	145
	146	#define CALL 0 * MAXSTATES
	147	#define CALL_ACCEPTED 1 * MAXSTATES
	148	#define CLEAR 2 * MAXSTATES
	149	#define CLEAR_CONF 3 * MAXSTATES
	150	#define DATA 4 * MAXSTATES
	151	#define INTERRUPT 5 * MAXSTATES
	152	#define INTERRUPT_CONF 6 * MAXSTATES
	153	#define RR 7 * MAXSTATES
	154	#define RNR 8 * MAXSTATES
	155	#define RESET 9 * MAXSTATES
	156	#define RESET_CONF 10 * MAXSTATES
	157	#define RESTART 11 * MAXSTATES
	158	#define RESTART_CONF 12 * MAXSTATES
	159	#define INVALID_PACKET 13 * MAXSTATES
	160	#define DELETE_PACKET INVALID_PACKET